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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research Unit » Research » Publications at this Location » Publication #375348
Research Project: Biologically-based Management of Arthropod Pests in Small Fruit and Nursery Crops

Location: Horticultural Crops Research Unit

Title: Biological control of spotted-wing drosophila - an update on promising agents

Author
item Wang, Xingeng
item DAANE, KENT - University Of California
item Hoelmer, Kim
item Lee, Jana

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 6/26/2020
Publication Date: 2/9/2021
Citation: Wang, X., Daane, K.M., Hoelmer, K.A., Lee, J.C. 2021. Biological control of spotted-wing drosophila - an update on promising agents. In: Garcia, F.R.M., editor. Drosophila suzukii Management. Cham, Switzerland: Springer. p. 143-167. https://doi.org/10.1007/978-3-030-62692-1_8.
DOI: https://doi.org/10.1007/978-3-030-62692-1_8

Interpretive Summary: Following the invasion of spotted-wing drosophila (SWD) throughout the world, over 96 studies have explored biological control of this pest. This review provides an update with recent studies published since our 2019 review. Since parasitoids are promising natural enemies that target SWD specifically and can move in the landscape, this chapter focuses on SWD parasitoids. To date, six parasitoid species have been confirmed to attack SWD in the invaded regions including three widely-studied generalist pupal parasitoids, Pachycrepoideus vindemiae, Trichopria drosophilae and T. anastrephae. In contrast, foreign explorations in China, Japan and South Korea have revealed 19 species of larval parasitoids of SWD. Ganaspis brasiliensis occurs in regions outside of Asia, but one strain in East Asia is the most host-specific to SWD and currently being petitioned for introduction into North America and Europe.

Technical Abstract: Following the global invasion of Drosophila suzukii, spotted-wing drosophila (SWD), over 96 studies have explored biological control of this pest. In 2019, a review summarized 57 species of parasitoids, predators, competitors and pathogens tested identifying promising ones. This review provides an update with recent studies. Since parasitoids are promising natural enemies that can be host-specific and self-disperse, this chapter focuses on SWD parasitoids in its invaded and native range, and prospects for classical biological control. To date, six parasitoid species have been confirmed to attack SWD in the invaded regions including three widely-studied generalist pupal parasitoids, Pachycrepoideus vindemiae, Trichopria drosophilae and T. anastrephae. No locally occurring larval drosophila parasitoids are capable of developing from SWD. In contrast, foreign explorations in China, Japan and South Korea have revealed 19 species of larval parasitoids of SWD. Asobara japonica, Ganaspis brasiliensis, and Leptopilina japonica japonica) have been evaluated. Ganaspis brasiliensis is a complex of several cryptic species/strains with varying host specificity. This species occurs in regions outside of Asia, but one strain distributed in East Asia is the most host-specific to SWD and currently being petitioned for introduction into North America and Europe.